Sound-box.



P. CATUUUI.

SOUND BOX.

APPLICATION FILED JUNE 15, 1912.

1,080,954 Patented Dec. 9,1913.

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APPLICATION FILED JUNE 15, 1912.

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TATE PATENT @FFKQE.

PLIN'Y GATU'CGX, 0F NEWARK, NEVI LF'ER$EY, IifiQIGNQB) T9- A. E. MEISSELBACH' @5 A QQBLEORA'EION 0F NEW JERSEY.

Speoi-fieation of Letters Eatent.

hemmed Beefiilhilh.

Applicatiom filed June 15, 1912. SerialNo 703,802.

To all whom, it may; concern:

Be it known that I, PLI'NY UA'FUCCI, a citizen of the United States, residing in the.

city of Newark, county oiz' Essex, andfStzite of New Jersey, have invented ,certaiir new and useful Improvements in Sound-Boxes, of which the followii g is a. full, c ear, and exact description, such as will enable others skilled in the art to make, construct, and use the some.

My invention relates to. that class of sound boxes for the use in phonographs. and talking machines wherein the disk record is commonly used, although it may be used in cmmectioiiwith machines doing the cylinder record; it relates more particularly to the improved form of stylus lever on itsiiiethod of attael-imeut to the body of the soiiml box, and is directed more particularly to the sii-nplilicatimi or such ports with a view to the improvement of the results to be obtained, as well as the reduction of the cost of manufacture and quickness and facility of adjustment.

In the accompanying drawings for'iriing a port of this speciiloatieisi, Figure l.- is. 'a. front elevation of the complete sound box. Fig. :2 is a eimilar view with clamping ringaiid diephrzigm reiiiov'ed. Fig. 3 is a side elevation of the complete box. Fig. 4: is a similarview of? the box body. ,Fig, 5 isan eiilia rged sectioned. view on line 5---5 of Fig, 1. Fig. 6 is a side view of the stylus lever detached. Fig. 7 is a plow. view oi the stylus Fig. 8 is a, plain and Fig. ii is :i side elevation of the ela iiping washer. ig W, 1.0". l0", 10, 1 -9. mid 1.0" are re sgwotively orspertive views of the several parts of the sound box arranged in the order ii which they are assembled to fo-rn'i the complete box. Figs. 11 and 12 are resyeo tively right and left side elevzitions of a Figs. 13 end Contact with the ring.

modified form of sound box. l-l are sections thrmigh the right and lefi supiwrting lugs, Fig. l5 is a front levapoi-ed sheet met-ail, and first blanked out to tion and Fig, 16. is an under plan view of said modified form.

Similar reference HlLHlQrlllS refer to like parts. throughout the specification and drawlhe box body consists of the generally disk-like member 1, having; the rearwardly projecting tubular integral thimhle or sleeve 2 by which the box is secured to the conducted. From the margin of the mem-, her 1, the cylindrical flange 3 projects, in such hummer as to leave an annular ledge or shoulder Tl, Within the flange 3 as clearly shown in Fig. From the outer side'of the fimigge 3, there project the two. lugs 5, 5, to which the stylus lever, hereinafter to be more particularly described, is secured. The lugs 5, 5, we provided: with the screwthreaded apertures 6, 6, to receive the fastenmg; screws 7, Z. The metal between. the lug. 5., 5 15 cut away as at 8, insuch a, manner as to leave a pair of knife edges or fulerums 9, 9, which are ranged in alinement. with the apertures 6, 6, with the fulerums, in. the general plane'o the outer face of the legs 5, 5.

' Within the box body and bearingupon its bottom, is. located the metal ring 1,0, which has, a width slightly greater than the. depth o,f the ledge or shoulder. l, and, a diameterllilllfhtly less than the inner diameter of said,

{ into the ring i4, and when, screwed home iser-ve to clamp. said ring down upon the edge of the ring '10 with the gasket; '11 and 13 under compression, with the diaphragm 12 between them.

Hammer ofthe ring 10, s ;o that when in place the edge of the diaphragm is free irom The stylus lever 16 is i'oriiied from unteinthe shape illustrated in Fig. 7 The 'irt bc-f gound co yey er tube. of the instrument.

right angles to. the axis and another rectanes of the [and through which the sound, wa vee are.

go or shoulder, so thzit it may rest loosely I The diaphragm 12- has $5, a diameter slightly less than the inaide digular bend 19, is formed in the lever so that when completed the lever is of the form and shape as shown in Figs. 1, 5, 6,'and 10. \Vithin the tubular end of the lever 16, the socket 20, is secured in any convenient manner as by soldering. This socket has the axial aperture 21 for the reception of the stylus needle 22, which latter is held in position by the clamping screw 23 as Will be readily understood.

7 When completely formed and in place the apertures at the lugs 17 register with the screw threaded apertures 6, G, of the lugs 5,

5, while the necks 2st, 24, of said lugs 17, 17,

rest npon the tulorums 9, 9,'beneath the clamping washers 25, 25, with the cambered lugs 26, 26, of said washers bearing upon the said necks 24, 2s. Screws 7, 7, pass through the washers 25, 25, lugs 17, 17, and into the threaded apertures 6, 6, of the lugs 5, 5, of the box body. The apertured end 18, of the stylus lever is secured to the center of the diaphragm 12, by means of the screw 27, and nut- 28.

I. have shown the clan'iping ring 14 split as at 29. bling, for ordinarily the stylus lever and diaphragm are first secured together as shown in F 10,when the gaskets 11 and 13 with the diaphra m; 12 between them may be put in place within the box body and afterward the split ring it, slipped into place over the stylus lever 16, without disturbing the parts previously in place.

While 1 have shown in the drawings, the box body-with the lugs 5, 5, as integral therewith, I do not wish to be understood as cmifining myself to this form. These, and other manufacturing details will readily suggest themselves to those skilled in the art.

From the above detailed description it will be seen that the mounting for the stylus lever upon the edge of th e box body makes it perfectly rigid in a plane parallel. to the dia hragm, and yet perfectly flexible in a plane at right angles thereto. The lugs 26, 26, being firmly clamped upon the necks 2%, 241,,ot the stylus lever supporting lugs, and holding them in firm engagement with the fulcrum'edges 9, 9, will prevent any tendency to rattle and at the same time permit the requisite freedom of movement of the stylus lever. v

By making the ring 1.0 sligh'ly narrower than the combined thickness of the gaskets, and diaphragm and yet wider than the depth of the ledge l, the requisite pressure upon the margin of thediaphragm is pro-,

vided for; and the diameter of said ring being less than the inside diameter of the ledge, the assemblage and adjustment of the parts is greatly facilitated.

in the modification illustrated in Figs. 11. to 16, the lugs 5, 5, are shown with inclined This is for convenience in assem menses faces; that is to say the outer face of one of the lugs is tilted or inclined in one direction out of the general plane of the flange 3, while the face of the other lug is tilted or inclined in the opposite direction, as clearly shown. -In order that the lugs 17 may fitin place, they are given a slight twist so as to lie flat upon the faces of the lugs 5, 5. The screws 7, 7 and the washers 25,25, occupy the samejrelative positions as hitherto described, except that they are correspond ingly tilted or inclined. The result of this modified structure is to give the stylus lever considerably more rigidity in a plane perpendicular to the plane of the diaphragm, and yet permit it to vibrate under the influence of the diaphragm when used as a recorder or permit it to vibrate under the influence of the record groove when used as a reproducer. The degree of the inclination of the faces of the lugs 5, 5, and the twist of the lugs 17, 1?, depends in practice upon the character of record to. be used with the sound box; for example, within certain limits the maximum inclination is best adapted for the reproduction of the higher notes and louder tones, as those produced by the soprano or tenor voice or a comet; while the minimum inclination is best adapted for selections wierein lower notes and softer tones are predominate. This may be accounted t'orby the relative torsional r'esistances offered by the twisting of the necks 24. 24 of the arms or lugs 17, 17.

I claim,

1. In a sound box, the combination of a box body, a pair of knife edge fulcrumsintegral therewith, a stylus'lever having a pair of laterally projecting, torsionally flexible supporting lugsintegral therewith and clamping washers having cambered lugs for bearing upon and clamping said flexible lugs said knife edge fulcrums.

2. in a; sound box, a box body, apair of knife edge fulcrums upon the edge of said body, a stylus lever, laterally projecting, flexible lugs integral with said stylus lever, and clamping washers having cambered lugs for bearing upon and clamping said lugs against said fulcrums to permit torsional flexure of said lugs.

3. In a sound box, it having a flange at its circumference, a pair of supporting lugs upon said flange, a pair of knife edge fulcrums upon said lugs, a stylus lever, flexible supporting arms projecting laterally from and integral with said lever, and clamping washers having 'cambered lugs for bearing upon and clamping said arms to said supporting lugs against said fulcrums to permit torsional fiexure of said arms.

4. In a sound box, a shallow cup shaped box body, a pair of supporting lugs integral with and projecting laterally from said box circular box body,

in said box body, comprising a ring sur-' Loa ers body, a pair of knife edged fulcrums upon said lugs, said fulcrums having their edges in alinei'nent with each other and with the planes of the faces of said lugs, and a stylus lever secured to said lugs and adapted to oscillate slightly upon said fulcrums.

5. In a sound box, a shallow cup shaped box body, having an annular ledge or shoulder upon the interior thereof, a ring loosely fitted within said ledge or' shoulder, said ring being of greater Width than the height of said ledge or shoulder, a pair of gaskets with a diaphragm located therebetween, said gaskets and diaphragm being located within said ring and a fiat clamping ring secured to said ledge or shoulder, said clamping ring overlapping said loosely fitted ring and gaskets and rigid], clamping said arts to the box body. f"

6. n a sound box, the combination of a circular flanged box body having a ledge or shoulder therein, means fgi flexibly supporting astylus lever upon ,id boxbody, a diaphragm connected tosaid stylus lever, means for supporting said diaphragm with rounding sai'd diaphragm and loosely fitted into said box body, a gasket upon each face of said diaphragm within said ring and a clamping ring secured to said ledge or shoulder, said clamping ring overlapping said loosely fitted ring and gaskets and rigidly clamping said partsto the box body.

7. In a sound box, a cup shaped bod and a diaphragm, means for securing sai diaphragm to said box body comprising a ring loosely fitted within said box body and surrounding said diaphragm, annular gaskets upon each face of the margin of said dia-- phragm within said ring, and a flat clamping ring overlapping said first named ring and gaskets, with means for rigidly securing said clamping ring to the box body to hold said loosely fit-ted ring, gaskets and diaphragm rigidly in place within said box body. 8..In a sound box, a box body provided with a circular back plate member having a peripheral cylindrical flange thereon, an annular ledge or shoulder connecting said flange with said back plate member, a pair of apertured, supporting lugs upon said flange, each of said lugs being provided with a knife edged fulcrum bearing, and each having its'edge in alinement with the face of the lug upon which it is located.

9. In-a sound box a circular box body having a of supporting lugs having oppositely inclined faces respectively, upon said flange,

ange at its circumference, a pair,

10. In a sound box, a shallow cup shaped box body, a pair of supporting lugs pro ecting laterallyfrom said box body, said lugs having respectively oppositely inclined faces, a pair of fulcrums upon said lugs, said fulcrums having V-shaped edges in the planes of the faces of said lugs, and a stylus lever secured to said lugs, and adapted to oscillate slightly upon said fnlcrums. 11. In a sound box, a circular box body having an outwardly projecting flange at its periphery, a pair of supporting lugs upon the outer side of said flange, said lugs having respectively oppositely inclined fasten- .ing faces, and V-shaped fulcrums upon said lugs having their edges in a-linement with the respective inclined faces of said lugsl 12. In a sound box, a stylus lever having laterally projecting apertured supporting arms integral therewith the faces of sai arms lying in intersecting planes, supporting lugs upon said sound box, said lugs having oppositely inclined faces and means for securing the apertured supporting arms of said stylus lever to said supporting lugs.

13. In a sound box, a stylus lever made of flexible untempered sheet metal, blanked to shape, and having laterally projecting apertured supporting arms, twisted into intersecting planes-supporting lugs upon said sound-box, said lugs having oppositely inclined faces and means for securing the apertured supporting arms of said stylus lever to said supporting lugs.

14. In a sound box, acircular box body having an outwardly projecting flange at its periphery, a pair of supporting lugs upon f the outer side of said flange, said lugs having respectively oppositely inclined fastening faces, V-shaped fulcrums upon said lugs, having their edges in alinement with the respective inclined faces of said lugs, and a stylus lever having laterally projecting supporting lugs twisted into planes to correspond' to the oppositely inclined faces of the lugs upon the boxbody.

In testimony whereof I hereunto set my hand and afiix my seal this 14th day of June, 1912.

PLINY CATUCCI. Witnesses:

Louis M. SANDERS, W. B. lVxLTziNoEn. 

